Is it the delicious recipes?like "Garlicky Broad Bean Salad", or "Rhubarb Bread and Butter Pudding", or "Roasted Squash and Wild Rocket Risotto"

Yes. I love it for that reason too.

Is it the way the book is laid out by season?So that you can easily see what to use with vegetables when they are fresh and available (either from an organic box scheme, farmer's market or your own allotment)

Yup. I love it because of that too - especially as it has lots of innovative recipes and ideas for using purple sprouting broccoli which is one of the lovely surprises each Spring.

Or is it because it is so darn funny?"Health Warning: this recipe only works with English Strawberries in June. Do not attempt in February as the lack of taste may induce clinical depression."

and cheeky?

and irreverant?(by cooking standards that is)

Yes, I think that's what I love most!

But, I guess it's all of those reasons combined.

A really cool book.

And you can get it for only £5 if you live in their delivery area and buy it from here or you can get it here. You can also look at some examples of their recipes here.